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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-410) A query with a combination of general and distinct aggregation functions fails
Date Wed, 11 Dec 2013 09:09:06 GMT
Hyunsik Choi created TAJO-410:
---------------------------------

             Summary: A query with a combination of general and distinct aggregation functions
fails
                 Key: TAJO-410
                 URL: https://issues.apache.org/jira/browse/TAJO-410
             Project: Tajo
          Issue Type: Bug
          Components: planner/optimizer
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi


{code:sql}
select 
    l_orderkey, 
    count(*) as cnt, 
    count(distinct l_linenumber) as unique_key 
from 
    lineitem
group by 
    l_orderkey;
{code}

The above query causes the following error:
{noformat}
/tajo-localdir/q_1386667006044_0002/output
2013-12-10 18:33:48,792 ERROR querymaster.QueryUnitAttempt (QueryUnitAttempt.java:transition(293))
- FROM  >> java.lang.Arrayy
IndexOutOfBoundsException: 0
        at org.apache.tajo.storage.VTuple.get(VTuple.java:97)
        at org.apache.tajo.engine.function.builtin.CountRows.merge(CountRows.java:54)
        at org.apache.tajo.engine.eval.AggregationFunctionCallEval.eval(AggregationFunctionCallEval.java:65)
        at org.apache.tajo.engine.planner.physical.SortAggregateExec.next(SortAggregateExec.java:57)
        at org.apache.tajo.engine.planner.physical.StoreTableExec.next(StoreTableExec.java:84)
        at org.apache.tajo.worker.Task.run(Task.java:358)
        at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:376)
        at java.lang.Thread.run(Thread.java:662)

2013-12-10 18:33:48,792 INFO  event.DefaultTaskSchedulerEvent (DefaultTaskScheduler.java:handle(233))
- TaskRequest: container_138666700
06044_0002_01_000188,eb_1386667006044_0002_000002
2013-12-10 18:33:48,792 INFO  querymaster.QueryUnit (QueryUnit.java:transition(433)) - 
{noformat}



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